@charset "UTF-8";
* {
  margin: 0;
  padding: 0;
}

.container {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  /* 100%窗口宽度、高度 */
  width: 100vw;
  height: 100vh;
  background: radial-gradient(circle at center, #555, #000);
}

.container a {
  position: relative;
  display: block;
  width: 140px;
  height: 60px;
  line-height: 60px;
  text-align: center;
  margin: 40px;
  color: plum;
  text-decoration: none;
  font-size: 20px;
  transition: all 0.3s ease-in-out;
}
.container a:nth-child(1) {
  filter: hue-rotate(60deg);
}
.container a:nth-child(2) {
  filter: hue-rotate(120deg);
}
.container a:nth-child(3) {
  filter: hue-rotate(180deg);
}
.container a:nth-child(4) {
  filter: hue-rotate(240deg);
}
.container a:nth-child(5) {
  filter: hue-rotate(300deg);
}
.container a::before, .container a::after {
  content: "";
  position: absolute;
  width: 20px;
  height: 20px;
  border: 2px solid plum;
  transition: all 0.3s ease-in-out 0.3s;
}
.container a::before {
  top: 0;
  left: 0;
  border-right: 0;
  border-bottom: 0;
}
.container a::after {
  bottom: 0;
  right: 0;
  border-left: 0;
  border-top: 0;
}
.container a:hover {
  background-color: plum;
  color: #000;
  box-shadow: 0 0 50px plum;
  -webkit-box-reflect: below 1px linear-gradient(transparent, rgba(0, 0, 0, 0.3));
  transition-delay: 0.4s;
}
.container a:hover::before, .container a:hover::after {
  width: 138px;
  height: 58px;
  transition-delay: 0s;
}/*# sourceMappingURL=index.css.map */